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ZC鑫

金虫 (初入文坛)

[求助] PWSCF中nscf计算出错"S matrix not positive definite"

运行wannier90-2.1.0自带例子中的PWSCF部分出错"S matrix not positive definite"
按照手册首先
pw.x <Fe.scf> scf.out
然后
pw.x <Fe.nscf> nscf.out
就出错了
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     task #         0
     from cdiaghg : error #        29
     S matrix not positive definite
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
我的Fe.scf文件
&control
    calculation='scf'
    restart_mode='from_scratch',
    pseudo_dir = '../../pseudo/',
    outdir='./'
    prefix='Fe'
/
&system
    ibrav = 3, celldm(1) =5.4235, nat= 1, ntyp= 1,
    ecutwfc =120.0
    lspinorb=.true.,
    noncolin=.true.,
    starting_magnetization(1) = -1
    occupations='smearing', smearing='cold', degauss=0.02
/
&electrons
    startingwfc='random'
    diagonalization='cg'
    conv_thr=1.0e-8
/
ATOMIC_SPECIES
Fe 55.85 Fe.jry.pbe.UPF
ATOMIC_POSITIONS
Fe 0.0 0.0 0.0
K_POINTS (automatic)
16 16 16 0 0 0
我的Fe.nscf文件
&control
    calculation='nscf'
    restart_mode='from_scratch',
    pseudo_dir = '../../pseudo/',
    outdir='./'
    prefix='Fe'
/
&system
    ibrav = 3, celldm(1) =5.4235, nat= 1, ntyp= 1,
    ecutwfc =120.0
    lspinorb=.true.,
    noncolin=.true.,
    starting_magnetization(1) = -1,
    nbnd=28
    occupations='smearing', smearing='cold', degauss=0.02
nosym=.true.
/
&electrons
    startingwfc='random'
    diagonalization='cg'
    conv_thr=1.0e-10
/
ATOMIC_SPECIES
Fe 55.85 Fe.jry.pbe.UPF
ATOMIC_POSITIONS
Fe 0.0 0.0 0.0
K_POINTS crystal
512
  0.00000000  0.00000000  0.00000000  1.953125e-03
  0.00000000  0.00000000  0.12500000  1.953125e-03
后面省略510个K点
另外请教在超算上pwscf如何提交并行的任务
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  • 附件 1 : Fe.nscf
  • 2017-04-10 20:02:16, 26.55 K
  • 附件 2 : Fe.scf
  • 2017-04-10 20:05:16, 548 bytes

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zhangfrank

金虫 (正式写手)

不清楚 帮忙顶一下
计算顺利点吧
2楼2017-04-10 20:21:53
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ZC鑫

金虫 (初入文坛)

引用回帖:
2楼: Originally posted by zhangfrank at 2017-04-10 20:21:53
不清楚 帮忙顶一下

谢谢,

发自小木虫Android客户端
3楼2017-04-10 20:41:59
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ZC鑫

金虫 (初入文坛)

我加了一个参数ecutrho=800.0
然后从scf重新计算,貌似算出来了
4楼2017-04-10 22:29:32
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